摘要
采用定积分近似计算原理与最小二乘原理,推导基尼系数估算的两种方法:抛物线估算法和拟合曲线法。从数形两个方面分析了基尼系数估算依据的基本原则,提高了估算的精确度。
With the help of approximate calculation of definite integral as well as least square theory,this paper deduces two kinds of methods to estimate Gini coefficient:the parabola method and curve fitting method.The basic principles for Gini coefficient estimation are analyzed from the perspectives of quantities and spatial forms,and the accuracy of estimation is improved.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2010年第6期95-99,共5页
Journal of Henan University of Science And Technology:Natural Science
基金
河南省自然科学基金项目(0511013800)
